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天線工程期中報告 論文研討: Chun-Yih Wu , Yen-Liang Kuo , Keng-Chih Lin

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Presentation on theme: "天線工程期中報告 論文研討: Chun-Yih Wu , Yen-Liang Kuo , Keng-Chih Lin"— Presentation transcript:

1 天線工程期中報告 論文研討: Chun-Yih Wu , Yen-Liang Kuo , Keng-Chih Lin “Low-profile Tunable WWAN Antenna for Whole-Metal-Covered Mobile Phone Applications, ” ISAP 2014, Kaohsiung, Taiwan, Dec. 2-5, 2014 報告人: 碩通一甲 MA 舒家弘 Southern Taiwan University of Science and Technology

2 Outline 摘要 天線架構 結果與討論

3 摘要 此論文為可調耦合式天線,天線應用頻帶為WWAN,使用在全金屬蓋輕薄手機,天線主要以被動元件和路徑做匹配,設置在手機金屬板的角落和平面L型的路徑並聯諧振出多頻帶。 參考文獻 Low-profile Tunable WWAN Antenna for Whole-Metal-Covered Mobile Phone Applications

4 天線設計 整體架構模擬實際手機,包含螢幕、金屬殼及背蓋。
參考文獻 Low-profile Tunable WWAN Antenna for Whole-Metal-Covered Mobile Phone Applications

5 天線設計 LC value C1 3.3 pF C2 0.8 pF | 1.2 pF L 5.1 nH
1.整體尺寸:140 X 70 mm2 2.為一個可調耦合式天線,操作頻帶在824~960MHz、1710~2170MHz 參考文獻 Low-profile Tunable WWAN Antenna for Whole-Metal-Covered Mobile Phone Applications

6 天線設計 探討C2的電容值對模態的變化,以達到所需的不同頻帶。
參考文獻 Low-profile Tunable WWAN Antenna for Whole-Metal-Covered Mobile Phone Applications

7 天線設計 針對C2的電容值下去探討,使用0.4pF時,頻寬及效率最好,低頻約38%~53%,高頻約29%~56%。
參考文獻 Low-profile Tunable WWAN Antenna for Whole-Metal-Covered Mobile Phone Applications

8 3D模擬場型圖 參考文獻 Low-profile Tunable WWAN Antenna for Whole-Metal-Covered Mobile Phone Applications

9 天線實作 1.模擬和實作的 Return loss 對照表,實作的RETURN LOSS 和模擬的相比,實作比較好。
2.我們要的頻帶都保持在-6dB以下 參考文獻 Low-profile Tunable WWAN Antenna for Whole-Metal-Covered Mobile Phone Applications

10 結論 此天線設計的架構簡單,模擬金屬背蓋,本文針對天線路徑及被動元件做匹配來達到最佳化,主要以金屬板的槽孔加上電容匹配之後,頻帶範圍涵蓋GSM850/900/DCS/PCS/UMTS。

11 心得 本文的天線設計架構簡單,運用被動元件來匹配電路,進而達到所要求的頻帶範圍,加上模擬實際手機的其它影響因素,像是螢幕、金屬、背蓋,便可以實際運用在產品上,功效不會有落差,看完這篇論文,了解被動元件的重要,可以用元件匹配來達到更好的效果。

12 參考文獻 [1] HTC One (2013), Wikipedia, the free encyclopedia [Online].
Available at: [2] J. Mullen, “Cell phone stops bullet aimed at Florida gas station clerk,” Available at: phone-blocks-bullet [3] K. L. Wong and Y. C. Liu, “Small size WWAN tablet computer antenna with distributed and lumped parallel resonant circuits,” Microwave Opt Technol Lett, vol. 54, pp , 2012. [4] K. L. Wong, Tsung-Ju Wu and Po-Wei Lin, “Small-size WWAN tablet computer antenna using a parallel-resonant strip for bandwidth enhancement,” IEEE Trans on Antenna and Propagat, vol. 61, pp , 2013. 參考文獻 Low-profile Tunable WWAN Antenna for Whole-Metal-Covered Mobile Phone Applications


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